/Engine/Plugins/Experimental/GameFeatures/Source/GameFeatures/Public/GameFeaturesSubsystem.h
Attempt to cancel any state change. Calls back when cancelation is complete. Any other pending callbacks will be called with a canceled error.
void CancelGameFeatureStateChange ( const [FString](API\Runtime\Core\Containers\FString) & PluginURL, const [FGameFeaturePluginChangeStateComplete](API\Plugins\GameFeatures\FGameFeaturePluginChangeStateCom-) & CompleteDelegate )